Home / 11,131.35-15,356.48-6,412.83

Finding the Fourth Proportional to 11,131.35, 15,356.48 and 6,412.83

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Solution

The fourth proportional to 11,131.35, 15,356.48 and 6,412.83 is: 8,846.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.35 : 15,356.48 = 6,412.83 : x
  2. Step 2: Convert to fraction form
    11,131.35/15,356.48 = 6,412.83/x
  3. Step 3: Cross multiply
    11,131.35x = 15,356.48 × 6,412.83
  4. Step 4: Simplify right side
    11,131.35x = 98,478,463.57
  5. Step 5: Solve for x
    x = 98,478,463.57/11,131.35
  6. Step 6: Final answer
    x = 8,846.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.